788 FNUS55 KTWC 171202 FWFTWC Fire Weather Planning Forecast for Southeast Arizona National Weather Service Tucson AZ 502 AM MST Fri May 17 2024 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY TERRAIN DRIVEN WINDS +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ .DISCUSSION... Dry with a strong warming trend into the weekend. The drying trend will push min RH values back down into single digits for valley locations. 20-foot winds will generally follow typical diurnal wind trends through early next week, with afternoon and early evening gustiness due to strong surface heating. A weak system approaching the area Monday may bring some additional breeziness. AZZ150-172230- Arizona Fire Weather Zone 150 Sonoran FDRA-Most of Pima County-South Central Pinal County- Tohono O'odham Nation-Tucson Metropolitan area-TDC- 502 AM MST Fri May 17 2024 .TODAY... * Sky/Weather..............Mostly sunny. * Max Temperature..........90 to 100 degs. * 24 hr Trend...........Up 3 to 7 degs. * Min Humidity.............8 to 16 pct. * 24 hr Trend...........Down 3 to 6 pct. * Wind (20 ft/10-min avg)..Light winds becoming west around 10 mph in the afternoon. * 10000 ft MSL Wind........Northwest 5 to 10 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. * Mixing Height............11723 ft agl. * Transport Winds..........South 8 knots shifting to the west 10 knots in the afternoon. * Ventilation Category.....Excellent (117230 knot-ft). .TONIGHT... * Sky/Weather..............Mostly clear. * Min Temperature..........59 to 69 degs. * 24 hr Trend...........Little change. * Max Humidity.............28 to 38 pct. * 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..West around 10 mph shifting to the south after midnight. * 10000 ft MSL Wind........West around 10 mph shifting to the south after midnight. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. .SATURDAY... * Sky/Weather..............Mostly sunny. * Max Temperature..........92 to 102 degs. * 24 hr Trend...........Up 2 to 5 degs. * Min Humidity.............6 to 13 pct. * 24 hr Trend...........Down 2 to 5 pct. * Wind (20 ft/10-min avg)..Light winds becoming southwest around 15 mph in the afternoon. * 10000 ft MSL Wind........Southwest 15 to 20 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. * Mixing Height............12895 ft agl. * Transport Winds..........South 9 to 14 knots. * Ventilation Category.....Excellent (180530 knot-ft). .FORECAST DAYS 3 THROUGH 7... WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG .SUNDAY...Mostly clear. Lows 58 to 68. Highs 89 to 99. Southwest wind around 15 mph. Minimum Humidity 5 to 11 pct. .MONDAY...Mostly clear. Lows 58 to 68. Highs 88 to 98. Southwest wind around 20 mph. Minimum Humidity 6 to 12 pct. .TUESDAY...Clear. Lows 54 to 64. Highs 85 to 95. Southwest wind around 15 mph. Minimum Humidity 6 to 12 pct. .WEDNESDAY...Clear. Lows 53 to 63. Highs 86 to 96. .THURSDAY...Clear. Lows 54 to 64. Highs 88 to 98. NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT LOCATION (2550 MSL) $$ AZZ151-172230- Arizona Fire Weather Zone 151 Western half Desert Grasslands FDRA including elevations up to 5500 feet in Southeast corner of Pinal County- Extreme Eastern Pima County-Western third of Cochise County- Santa Cruz County-TDC- 502 AM MST Fri May 17 2024 .TODAY... * Sky/Weather..............Mostly sunny. * Max Temperature..........82 to 92 degs. * 24 hr Trend...........Up 3 to 7 degs. * Min Humidity.............10 to 18 pct. * 24 hr Trend...........Down 3 to 7 pct. * Wind (20 ft/10-min avg)..West 10 to 15 mph. * 10000 ft MSL Wind........Northwest 10 to 15 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. * Mixing Height............11917 ft agl. * Transport Winds..........Northwest 11 to 12 knots. * Ventilation Category.....Excellent (143004 knot-ft). .TONIGHT... * Sky/Weather..............Mostly clear. * Min Temperature..........54 to 64 degs. * 24 hr Trend...........Up 1 to 4 degs. * Max Humidity.............33 to 43 pct. * 24 hr Trend...........Down 4 to 8 pct. * Wind (20 ft/10-min avg)..Northwest around 15 mph in the evening becoming light. * 10000 ft MSL Wind........West 5 to 10 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. .SATURDAY... * Sky/Weather..............Mostly sunny. * Max Temperature..........87 to 97 degs. * 24 hr Trend...........Up 3 to 6 degs. * Min Humidity.............8 to 15 pct. * 24 hr Trend...........Down 1 to 4 pct. * Wind (20 ft/10-min avg)..Light winds becoming southwest around 15 mph in the afternoon. * 10000 ft MSL Wind........Southwest 10 to 15 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. * Mixing Height............11349 ft agl. * Transport Winds..........South 9 knots shifting to the southwest in the afternoon. * Ventilation Category.....Excellent (158886 knot-ft). .FORECAST DAYS 3 THROUGH 7... WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG .SUNDAY...Mostly clear. Lows 52 to 62. Highs 84 to 94. Southwest wind around 15 mph. Minimum Humidity 7 to 13 pct. .MONDAY...Mostly clear. Lows 52 to 62. Highs 84 to 94. Southwest wind around 20 mph. Minimum Humidity 8 to 13 pct. .TUESDAY...Clear. Lows 48 to 58. Highs 80 to 90. Southwest wind around 15 mph. Minimum Humidity 7 to 12 pct. .WEDNESDAY...Clear. Lows 47 to 57. Highs 81 to 91. .THURSDAY...Clear. Lows 48 to 58. Highs 82 to 92. NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION (3500 MSL) $$ AZZ152-172230- Arizona Fire Weather Zone 152 Eastern half Desert Grasslands FDRA including elevations up to 5500 feet in Southwest Graham County and Eastern two thirds of Cochise County-Southern San Carlos Reservation- Southern Greenlee County below 5000 feet-TDC- 502 AM MST Fri May 17 2024 .TODAY... * Sky/Weather..............Mostly sunny then becoming partly cloudy. * Max Temperature..........82 to 92 degs. * 24 hr Trend...........Up 5 to 9 degs. * Min Humidity.............10 to 18 pct. * 24 hr Trend...........Down 5 to 9 pct. * Wind (20 ft/10-min avg)..Northwest 10 to 15 mph. * 10000 ft MSL Wind........Northwest 15 to 20 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. * Mixing Height............11277 ft agl. * Transport Winds..........Northwest 13 to 16 knots. * Ventilation Category.....Excellent (180432 knot-ft). .TONIGHT... * Sky/Weather..............Mostly clear. * Min Temperature..........52 to 62 degs. * 24 hr Trend...........Up 1 to 4 degs. * Max Humidity.............30 to 40 pct. * 24 hr Trend...........Down 12 to 16 pct. * Wind (20 ft/10-min avg)..Northwest 10 to 15 mph. * 10000 ft MSL Wind........West 10 to 15 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. .SATURDAY... * Sky/Weather..............Mostly sunny. * Max Temperature..........86 to 96 degs. * 24 hr Trend...........Up 3 to 6 degs. * Min Humidity.............8 to 15 pct. * 24 hr Trend...........Down 1 to 4 pct. * Wind (20 ft/10-min avg)..Light winds becoming west around 15 mph in the afternoon. * 10000 ft MSL Wind........Southwest 10 to 15 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. * Mixing Height............12788 ft agl. * Transport Winds..........Northwest 8 knots shifting to the southwest 14 knots in the afternoon. * Ventilation Category.....Excellent (179032 knot-ft). .FORECAST DAYS 3 THROUGH 7... WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG .SUNDAY...Mostly clear. Lows 53 to 63. Highs 85 to 95. West wind around 15 mph. Minimum Humidity 6 to 13 pct. .MONDAY...Mostly clear. Lows 51 to 61. Highs 84 to 94. West wind around 20 mph. Minimum Humidity 7 to 12 pct. .TUESDAY...Mostly clear. Lows 50 to 60. Highs 81 to 91. West wind around 15 mph. Minimum Humidity 6 to 12 pct. .WEDNESDAY...Clear. Lows 47 to 57. Highs 82 to 92. .THURSDAY...Clear. Lows 47 to 57. Highs 83 to 93. NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL) $$ AZZ153-172230- Arizona Fire Weather Zone 153 Northern Graham County-Northern Greenlee County- White and Gila Mountains-Apache Sitgreaves NF- Southern San Carlos Reservation above 5000 feet-SDC- 502 AM MST Fri May 17 2024 .TODAY... * Sky/Weather..............Mostly sunny then becoming partly cloudy. * Max Temperature..........72 to 82 degs. * 24 hr Trend...........Up 6 to 10 degs. * Min Humidity.............13 to 23 pct. * 24 hr Trend...........Down 12 to 16 pct. * Wind (20 ft/10-min avg)..West 10 to 15 mph. * 10000 ft MSL Wind........Northwest 15 to 20 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............5 or moderate. * Mixing Height............10824 ft agl. * Transport Winds..........Northwest 14 to 17 knots. * Ventilation Category.....Excellent (184008 knot-ft). .TONIGHT... * Sky/Weather..............Partly cloudy. * Min Temperature..........48 to 58 degs. * 24 hr Trend...........Up 2 to 5 degs. * Max Humidity.............35 to 45 pct. * 24 hr Trend...........Down 19 to 23 pct. * Wind (20 ft/10-min avg)..Northwest 10 to 15 mph. * 10000 ft MSL Wind........Northwest around 15 mph becoming west around 5 mph after midnight. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. .SATURDAY... * Sky/Weather..............Mostly sunny. * Max Temperature..........74 to 84 degs. * 24 hr Trend...........Up 2 to 5 degs. * Min Humidity.............10 to 18 pct. * 24 hr Trend...........Down 3 to 6 pct. * Wind (20 ft/10-min avg)..Northwest around 10 mph shifting to the southwest in the afternoon. * 10000 ft MSL Wind........Southwest around 5 mph increasing to around 15 mph in the afternoon. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............5 or moderate. * Mixing Height............10675 ft agl. * Transport Winds..........Northwest 10 knots shifting to the southwest 16 knots in the afternoon. * Ventilation Category.....Excellent (170800 knot-ft). .FORECAST DAYS 3 THROUGH 7... WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG .SUNDAY...Clear. Lows 47 to 57. Highs 73 to 83. West wind around 15 mph. Minimum Humidity 8 to 15 pct. .MONDAY...Mostly clear. Lows 45 to 55. Highs 72 to 82. West wind around 20 mph. Minimum Humidity 8 to 15 pct. .TUESDAY...Mostly clear. Lows 43 to 53. Highs 70 to 80. West wind around 15 mph. Minimum Humidity 8 to 14 pct. .WEDNESDAY...Clear. Lows 41 to 51. Highs 71 to 81. .THURSDAY...Mostly clear. Lows 42 to 52. Highs 71 to 81. NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL) $$ AZZ154-172230- Arizona Fire Weather Zone 154 Forest Woodlands FDRA including the Sky Islands of Southeast Arizona above 5500 feet-Coronado NF-TDC- 502 AM MST Fri May 17 2024 .TODAY... * Sky/Weather..............Mostly sunny then becoming partly cloudy. * Max Temperature..........72 to 82 degs. * 24 hr Trend...........Up 3 to 7 degs. * Min Humidity.............13 to 23 pct. * 24 hr Trend...........Down 5 to 9 pct. * Wind (20 ft/10-min avg)..Northwest 10 to 15 mph. * 10000 ft MSL Wind........Northwest 10 to 15 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. * Mixing Height............11965 ft agl. * Transport Winds..........Northwest 12 to 15 knots. * Ventilation Category.....Excellent (161527 knot-ft). .TONIGHT... * Sky/Weather..............Mostly clear. * Min Temperature..........51 to 61 degs. * 24 hr Trend...........Up 2 to 5 degs. * Max Humidity.............27 to 37 pct. * 24 hr Trend...........Down 10 to 14 pct. * Wind (20 ft/10-min avg)..Northwest 10 to 15 mph. * 10000 ft MSL Wind........West 10 to 15 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. .SATURDAY... * Sky/Weather..............Mostly sunny. * Max Temperature..........75 to 85 degs. * 24 hr Trend...........Up 3 to 6 degs. * Min Humidity.............10 to 20 pct. * 24 hr Trend...........Down 2 to 5 pct. * Wind (20 ft/10-min avg)..Northwest around 10 mph shifting to the southwest in the afternoon. * 10000 ft MSL Wind........Southwest 10 to 15 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. * Mixing Height............13196 ft agl. * Transport Winds..........West 9 to 13 knots. * Ventilation Category.....Excellent (145156 knot-ft). .FORECAST DAYS 3 THROUGH 7... WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG .SUNDAY...Mostly clear. Lows 50 to 60. Highs 75 to 85. West wind around 15 mph. Minimum Humidity 7 to 17 pct. .MONDAY...Mostly clear. Lows 49 to 59. Highs 74 to 84. West wind around 20 mph. Minimum Humidity 8 to 16 pct. .TUESDAY...Mostly clear. Lows 46 to 56. Highs 71 to 81. West wind around 15 mph. Minimum Humidity 7 to 15 pct. .WEDNESDAY...Clear. Lows 45 to 55. Highs 71 to 81. .THURSDAY...Clear. Lows 45 to 55. Highs 71 to 81. NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson